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Ubibay An auction system for mobile multihop ad-hoc networks
UbiBay: An auction system for mobile
multihop ad-hoc networks
?
Hannes Frey
University of Trier
Dept. of Computer Science
frey@syssoft.uni-trier.de
Johannes K. Lehnert
University of Trier
Dept. of Computer Science
lehnert@syssoft.uni-trier.de
Peter Sturm
University of Trier
Dept. of Computer Science
sturm@syssoft.uni-trier.de
ABSTRACT
Implementing distributed applications in mobile ad-hoc net-
works is a challenge because of low bandwidth, small trans-
mission range, unpredictable topology changes and the need
to conserve energy in low powered devices. This paper
presents a distributed auction system using a large scale ad-
hoc network as its sole communication platform. The auc-
tion system is built on top of a basic middleware service
intended to be used as a generic background dissemination
service for distributed self-organizing applications in mobile
ad-hoc networks. This service is used to disseminate the lo-
cal knowledge about the current state regarding a particular
auction. The basic idea of this service is the combination of
a device discovery service essential to any ad-hoc network
and a dissemination service based on epidemic message dis-
tribution. This service can be used by different competing
applications for permanent information dissemination, while
consuming only a small fraction of the available limited net-
work bandwidth in a mobile environment.
1. INTRODUCTION
The increasing number of todays mobile computers such as
subnotebooks, PDAs and even smaller devices, their perma-
nently improved computational power and wireless commu-
nication capabilities like Bluetooth [14] or IEEE 802.11b [1]
bear the potential to serve distributed applications as an ad-
ditional communication platform besides existing fixed net-
work infrastructures. Furthermore, the investigation of the
capabilities of applications solely using mobile multihop ad-
hoc networks spanning over a large but limited area like a
city is a challenging research field.
The very nature of
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